Passengers returning from a week long gay cruise on board Royal Caribbean International’s Allure of the Seas have been detained as a result of President Trump’s Executive Order, which bans citizens of predominantly Muslim countries from entering the United States.

Around 5,000 passengers returned to Fort Lauderdale following the 7-night gay cruise on board Allure of the Seas, which was chartered by Atlantis Events. But at the end of the cruise, hundreds of passengers were shocked to find out they could not re-enter the United States, despite having green cards, which make them legal residents of the U.S.